Plastic V-Belt Pulleys | McMaster-Carr

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98 Products

V-Belt Idler Pulleys


1 Groove	2 Grooves	3 Grooves

These idler pulleys spin freely on built-in ball bearings to maintain tension for reduced wear and vibration. Commonly used with belt tensioners (sold separately), they are lightweight and corrosion and abrasion resistant. Bearings are double sealed to keep dirt out.

	OD	For Shaft Dia.	Pitch Dia.	Wd.	Groove Dp.	Material	Body Type		Each
For 4L, A, AX Belts



	1	3"	3/8"	2"	45/64"	0.5"	Nylon	Solid	6234K43	000000


	1	3"	1/2"	2"	45/64"	0.5"	Nylon	Solid	6234K53	00000
	1	4"	3/8"	2.99"	45/64"	0.5"	Nylon	Solid	6234K45	00000
	1	4"	1/2"	2.99"	45/64"	0.5"	Nylon	Solid	6234K55	00000
	1	6"	1/2"	5.12"	23/32"	0.46"	Nylon	Solid	6234K61	00000
	1	7.5"	1/2"	6.6"	23/32"	0.45"	Nylon	Solid	6234K62	00000


	For 5L, B, BX Belts



			1	3.1"	3/8"	1.84"	25/32"	0.63"	Nylon	Solid	6234K44	00000


			1	3.1"	1/2"	1.84"	25/32"	0.63"	Nylon	Solid	6234K54	00000
			1	4"	3/8"	2.84"	55/64"	0.58"	Nylon	Solid	6234K46	00000
			1	4"	1/2"	2.84"	55/64"	0.58"	Nylon	Solid	6234K56	00000
			1	5"	3/8"	3.84"	51/64"	0.6"	Nylon	Solid	6234K47	00000
			1	5"	1/2"	3.84"	51/64"	0.6"	Nylon	Solid	6234K57	00000
			2	6.3"	1/2"	5.18"	1 23/32"	0.55"	Nylon	Solid	7637N111	000000
			3	6.3"	1/2"	5.18"	2 7/16"	0.55"	Nylon	Solid	7637N121	000000

V-Belt Drive Pulleys

For 2L Belts About For 2L Belts


Nylon, Solid Body

Drive pulleys for 2L belts are for fractional-horsepower V-belt drives.

No. of Grooves	OD	For Shaft Dia.	Pitch Dia.	Wd.	Overall Wd.	Groove Dp.	Material	Body Type	Includes		Each
1	1"	5/16"	0.9"	21/64"	11/16"	0.25"	Nylon	Solid	One Set Screw	3060K11	000000
1	1.5"	5/16"	1.4"	27/64"	7/8"	0.25"	Nylon	Solid	One Set Screw	3060K12	00000
1	2"	1/4"	1.9"	27/64"	7/8"	0.25"	Nylon	Solid	One Set Screw	3060K14	00000
1	3"	5/16"	2.9"	27/64"	7/8"	0.25"	Nylon	Solid	One Set Screw	3060K17	00000
1	5"	1/2"	4.9"	27/64"	7/8"	0.25"	Nylon	Solid	One Set Screw	3060K19	00000
1	6"	1/4"	5.9"	27/64"	7/8"	0.25"	Nylon	Solid	One Set Screw	3060K21	00000

For 4L, A, AX Belts


UHMW Polyethylene, Solid Body

UHMW Polyethylene—UHMW polyethylene drive pulleys can be machined to your exact specifications.

No. of Grooves	OD	For Shaft Dia.	For Max. Shaft Dia.	Pitch Dia.	Wd.	Groove Dp.	Material	Body Type		Each
1	1.75"	1/4"	1/4"	1.5"	3/4"	0.49"	UHMW Polyethylene	Solid	6274K11	000000
1	2.05"	1/4"	1/2"	1.8"	3/4"	0.49"	UHMW Polyethylene	Solid	6274K12	00000
1	2.25"	1/4"	1/2"	2"	3/4"	0.49"	UHMW Polyethylene	Solid	6274K14	00000
1	2.55"	1/4"	1/2"	2.3"	3/4"	0.49"	UHMW Polyethylene	Solid	6274K16	00000
1	3.05"	1/4"	3/4"	2.8"	3/4"	0.49"	UHMW Polyethylene	Solid	6274K21	00000
1	4.05"	1/2"	1 1/2"	3.8"	3/4"	0.49"	UHMW Polyethylene	Solid	6274K26	00000
1	4.45"	1/2"	1 1/2"	4.2"	3/4"	0.49"	UHMW Polyethylene	Solid	6274K28	00000
1	5.05"	1/2"	2"	4.8"	3/4"	0.49"	UHMW Polyethylene	Solid	6274K32	00000
1	5.45"	1/2"	2"	5.2"	3/4"	0.49"	UHMW Polyethylene	Solid	6274K34	00000
1	6.05"	1/2"	2 1/2"	5.8"	3/4"	0.49"	UHMW Polyethylene	Solid	6274K37	00000
1	7.25"	1/2"	2 3/4"	7"	3/4"	0.49"	UHMW Polyethylene	Solid	6274K42	00000
1	8.45"	1/2"	3"	8.2"	3/4"	0.49"	UHMW Polyethylene	Solid	6274K43	00000

For 5L, B, BX Belts


UHMW Polyethylene, Solid Body

UHMW Polyethylene—UHMW polyethylene drive pulleys can be machined to your exact specifications.

No. of Grooves	OD	For Shaft Dia.	For Max. Shaft Dia.	Pitch Dia.	Wd.	Groove Dp.	Material	Body Type		Each
1	3.75"	1/2"	3/4"	3.4"	1"	0.58"	UHMW Polyethylene	Solid	6274K51	000000
1	4.15"	1/2"	1 1/2"	3.8"	1"	0.58"	UHMW Polyethylene	Solid	6274K53	00000
1	5.15"	1/2"	2"	4.8"	1"	0.58"	UHMW Polyethylene	Solid	6274K57	00000

V-Belt Size Gauges

Quickly determine the size of any belt.

For Belt Trade Size	Material	Color	Max. Lg. Measured		Each
3L, 4L, 5L	Aluminum, Plastic	Orange	100"	60375K2	0000000

V-Belt and Pulley Trade Size Identifiers

Measure V-belt cross sections and pulley groove depths to select the correct size belt. Individual pieces are connected with a ball chain.

For Belt Trade Size	For Use With (No. of Pieces)	Material	Color		Each
3V, 5V, 8V, A, B, C, D, E	V-Belts (3), V-Belt Pulleys (8)	Plastic	Blue	1937K33	000000

V-Belts

2L Trade Size—2L, 3L, 4L, and 5L V-belts are commonly used on light duty drives with fractional-horsepower motors.

SPZ Trade Size—SPZ V-belts are for use with metric pulleys.

Food Industry Standard—Belts that are FDA compliant are safe for direct contact with food.

	Outer Circumference	No. of Bands	Material	Reinforcement Material	Color	Food Industry Std.		Each
2L Trade Size—1/4" Wide × 5/32" Thick



	2L100	10"	1	Polyurethane Rubber	Polyester Plastic	Black	—	7881K11	000000


	2L110	11"	1	Polyurethane Rubber	Polyester Plastic	Black	—	7881K12	0000
	2L120	12"	1	Polyurethane Rubber	Polyester Plastic	Black	—	7881K13	00000
	2L140	14"	1	Polyurethane Rubber	Polyester Plastic	Black	—	7881K15	00000
	2L150	15"	1	Polyurethane Rubber	Polyester Plastic	Black	—	7881K16	00000
	2L160	16"	1	Polyurethane Rubber	Polyester Plastic	Black	—	7881K17	00000
	2L180	18"	1	Polyurethane Rubber	Polyester Plastic	Black	—	7881K19	00000
	2L200	20"	1	Polyurethane Rubber	Polyester Plastic	Black	—	7881K22	00000
	2L270	27"	1	Polyurethane Rubber	Polyester Plastic	Black	—	7881K28	00000


	SPZ Trade Size—9.7 mm Wide × 8 mm Thick



			SPZ369	382 mm	1	Polyurethane Rubber	—	Orange	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	61875K931	00000


			SPZ512	525 mm	1	Polyurethane Rubber	—	Orange	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	61875K545	00000
			SPZ1024	1,037 mm	1	Polyurethane Rubber	—	Orange	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	61875K578	00000
			SPZ1180	1,193 mm	1	Polyurethane Rubber	—	Orange	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	61875K625	00000
			SPZ1212	1,225 mm	1	Polyurethane Rubber	—	Orange	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	61875K632	00000
			SPZ1320	1,333 mm	1	Polyurethane Rubber	—	Orange	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	61875K652	00000
			SPZ1400	1,413 mm	1	Polyurethane Rubber	—	Orange	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	61875K674	00000
			SPZ1500	1,513 mm	1	Polyurethane Rubber	—	Orange	FDA Compliant 21 CFR 177.1680, FDA Compliant 21 CFR 177.2600	61875K678	00000

Twist-Lock Adjustable-Length V-Belting

Twist the tabbed links together to form a belt. Because it’s made of individual links, this belting allows you to change your belt length without dismantling your drive.

Belt Trade Size	Wd.	Thk.	Approx. No. of Links per ft.	Material	Reinforcement Material	Color		Per Ft.
3L	3/8"	0.4063"	19	Polyurethane Rubber	Polyester Plastic	Gray	6173K36	000000
3V	3/8"	0.4688"	19	Polyurethane Rubber	Polyester Plastic	Blue	6173K14	00000
4L, A	1/2"	0.4375"	16	Polyurethane Rubber	Polyester Plastic	Gray	6173K37	00000
5L, B	5/8"	0.5938"	13	Polyurethane Rubber	Polyester Plastic	Gray	6173K38	00000
5V	5/8"	0.625"	10	Polyurethane Rubber	Polyester Plastic	Blue	6173K15	00000
AA	1/2"	0.4375"	17	Polyurethane Rubber	Polyester Plastic	Red	6173K51	00000
BB	5/8"	0.5938"	13	Polyurethane Rubber	Polyester Plastic	Red	6173K52	00000
C	7/8"	0.875"	10	Polyurethane Rubber	Polyester Plastic	Gray	6173K39	00000
CC	7/8"	0.75"	10	Polyurethane Rubber	Polyester Plastic	Red	6173K53	00000
D	1 1/4"	1.25"	8	Polyurethane Rubber	Polyester Plastic	Red	6173K41	00000
SPA	13 mm	12 mm	13	Polyurethane Rubber	Polyester Plastic	Blue	6173K17	00000
SPB	17 mm	16 mm	10	Polyurethane Rubber	Polyester Plastic	Blue	6173K18	00000
SPZ	10 mm	9 mm	19	Polyurethane Rubber	Polyester Plastic	Blue	6173K16	00000

V-Belting

Made of chemical- and abrasion-resistant polyurethane rubber, this belting is often used in light to medium duty power-transmission and conveying applications. To join ends, use a welding kit.

				Orange			Clear
Belt Trade Size	Wd.	Thk.	Material	For Min. Pulley Pitch Dia.		Per Ft.	For Min. Pulley Pitch Dia.		Per Ft.
3L	3/8"	7/32"	Polyurethane Rubber	1 3/4"	59735K11	00000	2 3/16"	59735K21	00000
4L	1/2"	5/16"	Polyurethane Rubber	2 1/2"	59735K12	0000	3 1/8"	59735K22	0000
5L	11/16"	13/32"	Polyurethane Rubber	3 1/4"	59735K13	0000	4 1/8"	59735K23	0000
C	29/32"	17/32"	Polyurethane Rubber	4 1/4"	59735K14	00000	5 5/16"	59735K24	00000
SPA	12.7 mm	10 mm	Polyurethane Rubber	63 mm	1094N42	0000	—	———	0
SPB	16.3 mm	13 mm	Polyurethane Rubber	82 mm	1094N43	00000	—	———	0
SPZ	9.7 mm	8 mm	Polyurethane Rubber	47 mm	1094N41	0000	—	———	0

Profile-Top V-Belting


T Top	Ridge Top	Wing Top	Ribbed Top


T-Top Profile	Ridged Top Profile	Wing Top Profile	Ribbed Top Profile

A range of specially shaped tops carry materials in conveying applications. Made of chemical- and abrasion-resistant polyurethane rubber, this belting is often used in light to medium duty power-transmission and conveying applications. To join ends, use a welding kit.

				Profile
	Belt Trade Size	Wd.	Thk.	Wd.	Thk.	For Min. Pulley Pitch Dia.	Material	Color		Per Ft.
T-Top Profile



		3L	9/16"	19/64"	—	—	2 3/8"	Polyurethane Rubber	Orange	7886K21	00000


		Ridged Top Profile



				4L	1/2"	5/16"	5/32"	1/8"	3 1/2"	Polyurethane Rubber	Orange	7886K22	0000


				4L	1/2"	5/16"	5/16"	5/16"	5"	Polyurethane Rubber	Orange	7886K23	0000


				Wing Top Profile



						5L	11/16"	13/32"	—	7/32"	3 1/4"	Polyurethane Rubber	Orange	1371K11	0000


						Ribbed Top Profile



								D	1 5/16"	3/4"	—	—	6"	Polyurethane Rubber	Orange	59735K15	00000

Banded V-Belting

Bands provide extra surface contact for handling high speed ratios. Made of chemical- and abrasion-resistant polyurethane rubber, this belting is often used in light to medium duty power-transmission and conveying applications. To join ends, use a welding kit.

Belt Trade Size	Wd.	Overall Wd.	Thk.	For Min. Pulley Pitch Dia.	No. of Bands	Material	Color		Per Ft.
3L	3/8"	15/16"	7/32"	2 1/8"	2	Polyurethane Rubber	Orange	59735K16	00000
A	1/2"	1 3/16"	5/16"	2 1/2"	2	Polyurethane Rubber	Orange	59735K17	00000

Press-Lock Adjustable-Length V-Belting

Steel rivets hold the individual links together, allowing you to change your belt length without dismantling your drive. Use an installation tool to add or remove links.

V-Belts										Belt Installation Tools
Belt Trade Size	Wd.	Thk.	Approx. No. of Links per ft.	Material	Reinforcement Material	Connector Material	Color		Per Ft.		Each
3L	3/8"	1/2"	14	Polyurethane Rubber	Polyester Plastic	Steel	Orange	6198K63	000000	6198K85	000000
4L	1/2"	19/32"	14	Polyurethane Rubber	Polyester Plastic	Steel	Orange	6198K65	00000	6198K85	00000
5L	21/32"	21/32"	12	Polyurethane Rubber	Polyester Plastic	Steel	Orange	6198K66	00000	6198K85	00000
C	7/8"	3/4"	9	Polyurethane Rubber	Polyester Plastic	Steel	Orange	6198K67	00000	6198K85	00000
SPA	13 mm	15 mm	13	Polyurethane Rubber	Polyester Plastic	Steel	Blue	6198K42	00000	6198K85	00000
SPB	17 mm	15 mm	13	Polyurethane Rubber	Polyester Plastic	Steel	Blue	6198K43	00000	6198K85	00000
SPZ	12 mm	15 mm	13	Polyurethane Rubber	Polyester Plastic	Steel	Blue	6198K41	00000	6198K85	00000

Static-Control Twist-Lock Adjustable-Length V-Belting

This belting limits static electricity discharge for hazardous applications such as fuel transfer and solar-cell manufacturing. Twist the tabbed links together to form a belt. Because the belting is made of individual links, you can change your belt length without dismantling your drive.

Belt Trade Size	Wd.	Thk.	Approx. No. of Links per ft.	Material	Reinforcement Material	Color	Performance	Surface Resistivity, ohm/sq.		Per Ft.
A	1/2"	1/2"	17	Polyurethane Rubber	Polyester Plastic	Blue	Conductive, Static Control	1× 10^2	1097N11	000000
B	5/8"	17/32"	13	Polyurethane Rubber	Polyester Plastic	Blue	Conductive, Static Control	1× 10^2	1097N12	00000

Grip-Top Twist-Lock Adjustable-Length V-Belting

A textured PVC top layer helps convey material in slippery environments or up steep inclines. Twist the tabbed links together to form a belt. Because it’s made of individual links, this belting allows you to change your belt length without dismantling your drive.

Belt Trade Size	Wd.	Thk.	Approx. No. of Links per ft.	Material	Reinforcement Material	Top Layer Material	Color		Per Ft.
A	1/2"	9/16"	13	Polyurethane Rubber	Polyester Plastic	PVC	Green/Red	6173K11	000000
B	5/8"	23/32"	13	Polyurethane Rubber	Polyester Plastic	PVC	Green/Red	6173K12	00000
C	7/8"	7/8"	9	Polyurethane Rubber	Polyester Plastic	PVC	Green/Red	6173K13	00000